WorksheetsGeologic Time
Total questions: 14
Worksheet time: 7mins
The Cenozoic Era is called the age of the mammals because
many mammals became extinct
many mammals reproduced
many mammals first evolved
This was not a geologic event of the Paleozoic era
formation of Pangaea
large scale glaciation
flooding of the continents
Which statement is not true of the Cenozoic era?
a large meteorite collided with Earth
it was a time of mountain building
much of the land was dry
Which geologic event occurred during the Mesozoic era?
The Pleisotocene Ice Age began
The Rocky Mountains formed
Pangaea formed
These were the most common life forms during the Mesozoic era.
fish
amphibians
reptiles
mammals
Gouges made by rocks carried in glaciers
geographic isolation
glacial grooves
icebergs
land bridges
The disappearance of many species over a short period of time
mass extinction
mass isolation
evolution
Form in swamps in wet, warm climates
glaciation
fossils
coal beds
This is unlikely to happen around a smll pond
evolution
geographic isolation
glaciation
Land bridges can affect the __________ of the species
extinction
evolution
quality
How was the geologic time scale developed?
through the Permian period
through mammals
through fossils
Which unit of geologic time is the longest?
era
eon
Which geologic time is olest?
Ordovician
Cambrian
Mesozoic
Paleozoic
What are two environmental changes that can affect evolution?
meteorite impacts and volcanic eruptions
sun spots and tides
